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Questions and Answers
What is the purpose of OMR technology?
What type of technology recognizes text within a digital image?
What is the use of MICR technology in bank cheques?
What is the purpose of character recognition technology?
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What technology is used to convert physical paper documents into digital images?
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What is the main application of OCR technology?
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What is the benefit of using MICR technology in bank cheques?
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What is the purpose of implanting character recognition technology under human skin?
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What technology is used in computerized tests to scan and mark multiple-choice questions?
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What is the main application of OMR technology?
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Study Notes
Video Input
- Videos are essential for entertainment and creative work on computers
- Videos can be inputted into the computer by:
- Recording directly from a webcam
- Transferring from a cell phone, digital camera, or dedicated video camera
- Microsoft Windows provides a basic video editing program called Windows Movie Maker
- Apple's equivalent is iMovie
Audio Input
- Audio is an important type of input for users
- Audio can be used for:
- Recording and mixing music
- Recording narration for presentations and videos
- Inputting text in PowerPoint
- Giving computer commands
- To input live sound, a microphone is needed
- Most laptops have a built-in microphone, but desktop computers need an external microphone
- Voice recognition software, such as Dragon Home or Professional, allows users to give commands or dictate text to the computer
Voice Recognition
- Voice recognition software can learn to recognize the user's speech and pronunciation
- It is a great tool for users who are physically disabled
- Windows provides a basic program called Speech Recognition
Audio Output
- Clear output from computers is essential for the user experience
- Sound is used to:
- Give user feedback when interacting with the computer
- Help disabled people use computers by reading interface items aloud
- Make games more realistic
- Turn computers into entertainment devices by playing music and movies
- Modern computers have onboard sound circuitry that allows them to record and playback sound
- External speakers or headphones are needed to produce the sound
Data Projectors
- Data projectors are output devices that connect to a computer and project images onto a screen or wall
- They are useful for presenting to large groups of people
- Various projector models use different technologies
Character Recognition
- OMR (Optical Mark Recognition) is used for computerized tests like multiple-choice tests
- MICR (Magnetic Ink Character Recognition) is used for bank cheques to recognize account numbers and other information
- OCR (Optical Character Recognition) is used to recognize text within digital images, commonly used for scanned documents and images
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Description
This quiz covers the importance of videos and audios in computers for entertainment and creative work, including recording, editing, and sharing videos.
